将下面的for循环转换为while循环，可以得到相同的输出
for (int i = 50; i > 0; i--)
{
System.out.println(i + “ minutes to go.”);
}
请参考：
int i = 50;
while (i > 0) {
System.out.println(i + "minutes to go.");
i--;
}
int i = 50;
while (i > 0) {
System.out.println(i + "minutes to go.");
i--;
}